1Nikolaus Pevsner,An Outline of European Archtecture, 8th rev. ed. Baltimore: Penguin, 1974.
2Kenneth Clark,The Gothic Revival, An Essay in the History of Taste, Revised and enlarged edition, London: Constable, 1950 P121.
3Goethe's Literary Eassays,trans. And ed. By J. E. Spingarn, P5.
4Kenneth Clark, The Gothic Revival, An Essay in the History of Taste, Revised and enlarged edition, London: Constable, 1950 P133.
5John Ruskin, the Seven Lamps of Architecture, Dover Publications, Inc. 1989 p2,P29,P103,P176,p148.
6Kenneth Clark,The Gothic Revival, An Essay in the History of Taste, Revised and enlarged edition, London : Constable, 1950 , P202.
7Karl Scheffler, Der Geist der Gotik (Leipzig, 1925) & Deutsche Kunst (Berlin, 1915).
8Peter Selz,German Expressionist Painting. Berkeley: University of California Press, 1957 P15-16.
9Wilhelm Worringer ,Form Problems of the Gothic, New York: G. E. Stechert, 1920, English Edition, Tr. H. Read,Form in Gothic, 1957 P38,P79,P79,P43-44,P62,P79,P80,P81.
